Flow Meters
Flow meters and flow counters are used wherever liquids need to be precisely measured, dispensed, or filled.
FLUX flow meters operate on the wobble-disc, oval wheel, or turbine wheel principles and cover flow rates from 0.04 to 380 l/min at viscosities up to 500,000 mPas—whether used as portable units on drum pumps or as stationary units in piping systems.
Advantages
Precise Measurement of High-Viscosity Liquids
Up to 500,000 mPas—reliably measures bitumen, resins, and high-viscosity oils as well.
Measure regardless of position
Works in any installation position—horizontal, vertical, or at an angle—without the need for readjustment.
Semi-automatic dosing
Fill preprogrammed quantities at the push of a button—with signals sent to valves and the PLC.
Portable and easy to handle
Mechanical counting unit attached directly to the JUNIORFLUX/COMBIFLUX – 0.24 kg, ready for immediate use.
Applications
Typical Applications and Areas of Use for FLUX Flow Meters
Small-Volume Dosing
Filling small quantities from canisters and drums—on the go with JUNIORFLUX/COMBIFLUX and FMT.
High-viscosity fluids
Oils, resins, bitumen up to 500,000 mPas – FMO oval wheel flowmeter, even with pulsating flow.
Semi-automatic filling
Preprogrammed target quantities at the push of a button – FLUXTRONIC® with signal output to valves and PLC.
Ex-protected measurement
Flammable media and solvents – FMC and FMO in explosion-proof versions.
On-site equipment measurement
In-line measurement in piping systems – FMO for pressures up to 200 bar, low pressure loss.
Food & Pharmaceuticals
FDA- and FOOD-compliant designs—for safe dosing in hygiene-sensitive areas.
Measurement Principles and Recommended Applications
Low- to medium-viscosity fluids (up to 2,500 mPas), including those with light contamination. Mobile use with drum pumps and container pumps from the 400 series, or stationary use in plant engineering. FMC models are suitable for batch operation; FMJ models are only suitable for normal operation (no automatic operation).
The FMC/FMJ series flow meters operate on the swivel disc principle. In this system, the flow sets the swivel disc in motion. The FLUXTRONIC® evaluation unit calculates the volume dispensed based on the number of rotations. For maximum measurement accuracy, the system must always be completely filled with flow or liquid.
- The FMC/FMJ flow meters are primarily used with our Series 400 drum pumps and container pumps
- They are also suitable for stationary use in plant engineering
- The FMJ should only be used if batch operation (automatic filling at the push of a button) is not required
- FMC flow meters are also suitable for batch operation (automatic operation)
- Also suitable for measurements in hazardous areas
- For applications involving low-viscosity liquid media such as acids, alkalis, fuels (gasoline, diesel), water, oils, highly flammable media, solvents, and even slightly contaminated liquids
Wide viscosity range (up to 500,000 mPas), even with pulsating flow rates (compressed-air diaphragm pumps). Mobile use with drum, container, and eccentric screw pumps, or stationary use in plants. Sizes FMO 101/102 for small flow rates, FMO 104/110 for medium flow rates, and FMO 140/150 for large flow rates.
The flow meters of the FMO series consist of a measuring chamber with oval wheels. The medium flows through the measuring chamber, thereby driving the oval wheels. A reed sensor counts the number of revolutions made during this process and transmits this data to the FLUXTRONIC®. The FLUXTRONIC® calculates the flow rate of the medium based on a previously entered, medium-specific calibration constant.
- FMO 101 and FMO 102 for low flow rates
- The FMO 104 and FMO 110 are primarily used with our drum pumps, container pumps, and eccentric screw pumps
- The FMO 140 and 150 are primarily used in larger systems
- The FMO units are suitable for automatic filling (batch operation) of fluids at the push of a button
- For applications and liquids in hazardous areas
- Also available with FDA/FOOD certification
- For pure and highly viscous liquids, such as acids, alkalis, fuels (gasoline, diesel), water, oils, solvents, highly flammable media, and non-self-lubricating media
Low-viscosity, non-flammable fluids (up to 40 mPas). Purely mechanical metering unit, specifically designed for mobile use with JUNIORFLUX/COMBIFLUX pumps. Cost-effective alternative to FMC/FMJ.
Flow meters and flow meters of the FMT series based on the turbine wheel principle:
The FMT 120 PP flow meter operates according to the turbine wheel principle. It uses a turbine measuring wheel that rotates freely in the liquid flow. The medium flowing through the flow meter sets the turbine impeller in rotational motion, which is measured and evaluated. The partial and total volumes are displayed on the five-digit LCD screen.
- The FMT flow meter is primarily used with our JUNIORFLUX/COMBIFLUX drum pumps for smaller flow rates and filling volumes
- An affordable alternative to our FMC/FMJ flow meters and flow counters
- For neutral, low-viscosity, and non-flammable liquids
Materials and Applications
Acids, alkalis—a standard material with high chemical resistance.
Concentrated acids, corrosive media – greater resistance than PP.
Solvents, fuels, food, cosmetics—suitable for use in hazardous areas.
Acids, alkalis, corrosive chemicals.
Fuels, mineral oils, heating oils.
A Direct Comparison of the Series
An overview of the most important specifications and features—for selection and comparison.
Feature |
FMC |
FMO |
FMT |
FLUXTRONIC® |
| Measurement Principle | Swashplate | Oval wheel | Turbine wheel | Signal Processing Electronics |
| Flow Rate | 10–250 l/min | 0.04 – 380 l/min | 5–120 l/min | – |
| Max. viscosity | 2,500 mPas | 500,000 mPas | 40 mPas | – |
| Max. operating pressure | 6 bar | 200 bar | 10 bar | – |
| Max. temperature | 80 °C | 120 °C | 50 °C | – |
| Materials | PP, ETFE, stainless steel | PVDF, stainless steel, aluminum | PP | PP |
| Explosion protection | ✓ | ✓ (Stainless steel versions) | – | ✓ (Zone 1) |
| FDA/FOOD | – | ✓ | – | n/a |
| Calibratable |
✓ | ✓ | – | ✓ Calibration based on medium |
| FLUXTRONIC® | ✓ | ✓ | – | ✓ |
| Application | Mobile / Stationary | Mobile / Stationary | Mobile (JUNIORFLUX/COMBIFLUX) | Wall- or product-mounted |
| Ideal for | Changing media, including contaminated media | High-viscosity, pulsating, high-pressure | Small quantities, mobile | Semi-automatic filling |
| FMC | FMO | FMT | FLUXTRONIC® |
The maximum flow rate is a test bench value, measured with water at 20 °C at the pump’s discharge port, without any attachments (hose, dispensing nozzle, flow meter). The flow rate that can be achieved in practice is lower and depends on the specific application, the properties of the fluid, and the pump configuration. Specifications are for an axial rotor, unless otherwise stated.
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